87 lines
1.7 KiB
C
87 lines
1.7 KiB
C
/*
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* This file is subject to the terms of the GFX License. If a copy of
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* the license was not distributed with this file, you can obtain one at:
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*
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* http://ugfx.org/license.html
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*/
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#ifndef _GINPUT_LLD_MOUSE_BOARD_H
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#define _GINPUT_LLD_MOUSE_BOARD_H
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// Resolution and Accuracy Settings
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#define GMOUSE_ADS7843_PEN_CALIBRATE_ERROR 2
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#define GMOUSE_ADS7843_PEN_CLICK_ERROR 2
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#define GMOUSE_ADS7843_PEN_MOVE_ERROR 2
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#define GMOUSE_ADS7843_FINGER_CALIBRATE_ERROR 20
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#define GMOUSE_ADS7843_FINGER_CLICK_ERROR 4
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#define GMOUSE_ADS7843_FINGER_MOVE_ERROR 4
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// How much extra data to allocate at the end of the GMouse structure for the board's use
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#define GMOUSE_ADS7843_BOARD_DATA_SIZE 0
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static const SPIConfig spicfg = {
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0,
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GPIOC,
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6,
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/* SPI_CR1_BR_2 |*/ SPI_CR1_BR_1 | SPI_CR1_BR_0,
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};
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static bool_t init_board(GMouse* m, unsigned driverinstance)
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{
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(void)m;
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// Only one touch interface on this board
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if (driverinstance)
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return FALSE;
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// Set the GPIO modes
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palSetPadMode(GPIOC, 4, PAL_MODE_INPUT_PULLUP);
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// Start the SPI peripheral
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spiStart(&SPID1, &spicfg);
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return TRUE;
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}
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static inline bool_t getpin_pressed(GMouse* m)
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{
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(void) m;
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return (!palReadPad(GPIOC, 4));
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}
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static inline void aquire_bus(GMouse* m)
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{
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(void) m;
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spiAcquireBus(&SPID1);
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palClearPad(GPIOC, 6);
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}
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static inline void release_bus(GMouse* m)
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{
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(void) m;
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palSetPad(GPIOC, 6);
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spiReleaseBus(&SPID1);
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}
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static inline uint16_t read_value(GMouse* m, uint16_t port)
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{
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static uint8_t txbuf[3] = {0};
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static uint8_t rxbuf[3] = {0};
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uint16_t ret;
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(void) m;
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txbuf[0] = port;
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spiExchange(&SPID1, 3, txbuf, rxbuf);
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ret = (rxbuf[1] << 5) | (rxbuf[2] >> 3);
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return ret;
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}
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#endif /* _GINPUT_LLD_MOUSE_BOARD_H */
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